yanick/updux
1
0
Fork 0
Code Issues 6 Pull Requests Projects Releases 10 Wiki Activity

remove the original

Browse Source
This commit is contained in:
Yanick Champoux 2022-08-30 14:17:27 -04:00
parent 16397ce3ee
commit 6b508c9db2
1 changed files with 0 additions and 457 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

457
src/Updux.original
View File

@ -1,457 +0,0 @@
/* TODO change * for leftovers to +, change subscriptions to reactions */
import moize from 'moize';
import u from 'updeep';
import { createStore as reduxCreateStore, applyMiddleware } from 'redux';
import { get, map, mapValues, merge, difference } from 'lodash-es';
import { buildInitial } from './buildInitial/index.js';
import { buildActions } from './buildActions/index.js';
import { buildSelectors } from './buildSelectors/index.js';
import { action } from './actions.js';
import { buildUpreducer } from './buildUpreducer.js';
import {
buildMiddleware,
augmentMiddlewareApi,
effectToMiddleware,
} from './buildMiddleware/index.js';
import {
AggregateDuxActions,
AggregateDuxState,
Dict,
ItemsOf,
Reducer,
Upreducer,
} from './types.js';
type Mutation<TState,TAction extends { payload?: any }> = (payload:TAction['payload'], action:TAction) => (state: TState) => TState;
/**
* Configuration object typically passed to the constructor of the class Updux.
*/
export interface UpduxConfig<
TState = any,
TActions = {},
TSelectors = {},
TSubduxes = {}
> {
/**
* Local initial state.
* @default {}
*/
initial?: TState;
/**
* Subduxes to be merged to this dux.
*/
subduxes?: TSubduxes;
/**
* Local actions.
*/
actions?: TActions;
/**
* Local selectors.
*/
selectors?: Record<string, Function>;
/**
* Local mutations
*/
mutations?: Record<string, Function>;
/**
* Selectors to apply to the mapped subduxes. Only
* applicable if the dux is a mapping dux.
*/
mappedSelectors?: Record<string, Function>;
/**
* Local effects.
*/
effects?: Record<string, Function>;
/**
* Local reactions.
*/
reactions?: Function[];
/**
* If true, enables mapped reactions. Additionally, it can be
* a reaction function, which will treated as a regular
* reaction for the mapped dux.
*/
mappedReaction?: Function | boolean;
/**
* Wrapping function for the upreducer to provides full customization.
* @example
* // if an action has the 'dontDoIt' meta flag, don't do anything
* const dux = new Updux({
* ...,
* upreducerWrapper: (upreducer) => action => {
* if( action?.meta?.dontDoIt ) return state => state;
* return upreducer(action);
* }
* })
*/
upreducerWrapper?: (
upreducer: Upreducer<
AggregateDuxState<TState, TSubduxes>,
ItemsOf<AggregateDuxActions<TActions, TSubduxes>>
>
) => Upreducer<
AggregateDuxState<TState, TSubduxes>,
ItemsOf<AggregateDuxActions<TActions, TSubduxes>>
>;
middlewareWrapper?: Function;
}
export class Updux<
TState extends any = {},
TActions extends object = {},
TSelectors = {},
TSubduxes extends object = {}
> {
/** @type { unknown } */
#initial = {};
#subduxes = {};
/** @type Record<string,Function> */
#actions = {};
#selectors = {};
#mutations = {};
#effects = [];
#reactions = [];
#mappedSelectors = undefined;
#mappedReaction = undefined;
#upreducerWrapper = undefined;
#middlewareWrapper = undefined;
constructor(
config: UpduxConfig<TState, TActions, TSelectors, TSubduxes>
) {
this.#initial = config.initial ?? {};
this.#subduxes = config.subduxes ?? {};
if (config.subduxes) {
this.#subduxes = mapValues(config.subduxes, (sub) =>
sub instanceof Updux ? sub : new Updux(sub)
);
}
if (config.actions) {
for (const [type, actionArg] of Object.entries(config.actions)) {
if (typeof actionArg === 'function' && actionArg.type) {
this.#actions[type] = actionArg;
} else {
const args = Array.isArray(actionArg)
? actionArg
: [actionArg];
this.#actions[type] = action(type, ...args);
}
}
}
this.#selectors = config.selectors ?? {};
this.#mappedSelectors = config.mappedSelectors;
this.#mutations = config.mutations ?? {};
Object.keys(this.#mutations)
.filter((action) => action !== '+')
.filter((action) => !this.actions.hasOwnProperty(action))
.forEach((action) => {
throw new Error(`action '${action}' is not defined`);
});
if (config.effects) {
this.#effects = Object.entries(config.effects);
}
this.#reactions = config.reactions ?? [];
this.#mappedReaction = config.mappedReaction;
this.#upreducerWrapper = config.upreducerWrapper;
this.#middlewareWrapper = config.middlewareWrapper;
}
#memoInitial = moize(buildInitial);
#memoActions = moize(buildActions);
#memoSelectors = moize(buildSelectors);
#memoUpreducer = moize(buildUpreducer);
#memoMiddleware = moize(buildMiddleware);
setMappedSelector(name, f) {
this.#mappedSelectors = {
...this.#mappedSelectors,
[name]: f,
};
}
get middleware() {
return this.#memoMiddleware(
this.#effects,
this.actions,
this.selectors,
this.#subduxes,
this.#middlewareWrapper,
this
);
}
setMiddlewareWrapper(wrapper: Function) {
this.#middlewareWrapper = wrapper;
}
/** @member { unknown } */
get initial(): AggregateDuxState<TState, TSubduxes> {
return this.#memoInitial(this.#initial, this.#subduxes);
}
get actions(): AggregateDuxActions<TActions, TSubduxes> {
return this.#memoActions(this.#actions, this.#subduxes) as any;
}
get selectors() {
return this.#memoSelectors(
this.#selectors,
this.#mappedSelectors,
this.#subduxes
);
}
get subduxes() { return this.#subduxes }
get upreducer(): Upreducer<
AggregateDuxState<TState, TSubduxes>,
ItemsOf<AggregateDuxActions<TActions, TSubduxes>>
> {
return this.#memoUpreducer(
this.initial,
this.#mutations,
this.#subduxes,
this.#upreducerWrapper
);
}
get reducer(): Reducer<
AggregateDuxState<TState, TSubduxes>,
ItemsOf<AggregateDuxActions<TActions, TSubduxes>>
> {
return (state, action) => this.upreducer(action)(state);
}
addSubscription(subscription) {
this.#reactions = [...this.#reactions, subscription];
}
addReaction(reaction) {
this.#reactions = [...this.#reactions, reaction];
}
setAction(type, payloadFunc?: (...args: any) => any) {
const theAction = action(type, payloadFunc);
this.#actions = { ...this.#actions, [type]: theAction };
return theAction;
}
setSelector(name, func) {
// TODO selector already exists? Complain!
this.#selectors = {
...this.#selectors,
[name]: func,
};
return func;
}
setMutation<TAction extends keyof AggregateDuxActions<TActions,TSubduxes>>(name: TAction, mutation: Mutation<AggregateDuxState<TState, TSubduxes>,
ReturnType<AggregateDuxActions<TActions,TSubduxes>[TAction]>>) {
if (typeof name === 'function') name = name.type;
this.#mutations = {
...this.#mutations,
[name]: mutation,
};
return mutation;
}
addEffect<TType, E>(action: TType, effect: E): E {
this.#effects = [...this.#effects, [action, effect]];
return effect;
}
augmentMiddlewareApi(api) {
return augmentMiddlewareApi(api, this.actions, this.selectors);
}
splatSubscriber(store, inner, splatReaction) {
const cache = {};
return () => (state, previous, unsub) => {
const cacheKeys = Object.keys(cache);
const newKeys = difference(Object.keys(state), cacheKeys);
for (const slice of newKeys) {
let localStore = {
...store,
getState: () => store.getState()[slice],
};
cache[slice] = [];
if (typeof splatReaction === 'function') {
localStore = {
...localStore,
...splatReaction(localStore, slice),
};
}
const { unsub, subscriber, subscriberRaw } =
inner.subscribeAll(localStore);
cache[slice].push({ unsub, subscriber, subscriberRaw });
subscriber();
}
const deletedKeys = difference(cacheKeys, Object.keys(state));
for (const deleted of deletedKeys) {
for (const inner of cache[deleted]) {
inner.subscriber();
inner.unsub();
}
delete cache[deleted];
}
};
}
subscribeTo(store, subscription, setupArgs = []) {
const localStore = augmentMiddlewareApi(
{
...store,
subscribe: (subscriber) =>
this.subscribeTo(store, () => subscriber),
},
this.actions,
this.selectors
);
const subscriber = subscription(localStore, ...setupArgs);
let previous;
const memoSub = () => {
const state = store.getState();
if (state === previous) return;
let p = previous;
previous = state;
subscriber(state, p, unsub);
};
let ret = store.subscribe(memoSub);
const unsub = typeof ret === 'function' ? ret : ret.unsub;
return {
unsub,
subscriber: memoSub,
subscriberRaw: subscriber,
};
}
subscribeAll(store) {
let results = this.#reactions.map((sub) =>
this.subscribeTo(store, sub)
);
for (const subdux in this.#subduxes) {
if (subdux !== '*') {
const localStore = {
...store,
getState: () => get(store.getState(), subdux),
};
results.push(this.#subduxes[subdux].subscribeAll(localStore));
}
}
if (this.#mappedReaction) {
results.push(
this.subscribeTo(
store,
this.splatSubscriber(
store,
this.#subduxes['*'],
this.#mappedReaction
)
)
);
}
return {
unsub: () => results.forEach(({ unsub }) => unsub()),
subscriber: () =>
results.forEach(({ subscriber }) => subscriber()),
subscriberRaw: (...args) =>
results.forEach(({ subscriberRaw }) =>
subscriberRaw(...args)
),
};
}
createStore(initial?: unknown, enhancerGenerator?: Function) {
const enhancer = (enhancerGenerator ?? applyMiddleware)(
this.middleware
);
const store: {
getState: Function & Record<string, Function>;
dispatch: Function & Record<string, Function>;
selectors: Record<string, Function>;
actions: AggregateDuxActions<TActions, TSubduxes>;
} = reduxCreateStore(
this.reducer as any,
initial ?? this.initial,
enhancer
) as any;
store.actions = this.actions;
store.selectors = this.selectors;
merge(
store.getState,
mapValues(this.selectors, (selector) => {
return (...args) => {
let result = selector(store.getState());
if (typeof result === 'function') return result(...args);
return result;
};
})
);
for (const action in this.actions) {
store.dispatch[action] = (...args) => {
return store.dispatch(this.actions[action](...(args as any)));
};
}
this.subscribeAll(store);
return store;
}
effectToMiddleware(effect) {
return effectToMiddleware(effect, this.actions, this.selectors);
}
}